我在简单的标准rails应用程序上运行redis时遇到问题。我在我的Gemfile中添加了redis：
1 source 'https://rubygems.org'
2
3 gem 'coffee-rails', '~> 4.1.0'
4 gem 'jbuilder', '~> 2.0'
5 gem 'jquery-rails'
6 gem 'pg'
7 gem 'rails', '4.2.0'
8 gem 'redis'
9 gem 'sass-rails', '~> 5.0'
10 gem 'sdoc', '~> 0.4.0', group: :doc
11 gem 'uglifier', '>= 1.3.0'
然后我安装了bundle，并添加了config / initializers / redis.rb：
$redis = Redis.new(:host => 'localhost', :port => 6379)
当我去运行rails console时，我想出了这个错误。
/home/adam/dev/Sandbox/Redis/config/application.rb:17:in `<top (required)>': Redis is not a module (TypeError)
from /home/adam/.gem/ruby/2.1.5/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:141:in `require'
from /home/adam/.gem/ruby/2.1.5/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:141:in `require_application_and_environment!'
from /home/adam/.gem/ruby/2.1.5/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:67:in `console'
from /home/adam/.gem/ruby/2.1.5/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /home/adam/.gem/ruby/2.1.5/gems/railties-4.2.0/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
我不确定如何解决这个问题，并会感激一些帮助。